[jira] Commented: (CLK-639) Click GAE does not support automapped pages in production modes

["Bob Schellink (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CLK-639?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12888120#action_12888120 ] 

Bob Schellink commented on CLK-639:
-----------------------------------

GAE does not properly implement the Servlet specification -> ServletContext.getResourcePaths("/").

The Javadoc is quite explicit about the usage of "/":

http://java.sun.com/products/servlet/2.5/docs/servlet-2_5-mr2/javax/servlet/ServletContext.html#getResourcePaths(java.lang.String)

There is an outstanding issue raised with GAE:

http://code.google.com/p/googleappengine/issues/detail?id=3417

Even though GAE does not support getResourcePaths("/") it does return resources if the resourcePath is not root. For example getResourcePaths("/pages") does return resources under the folder "/pages".
For now we can add a workaround where templates and pages must be placed under the "/pages" or "/page" folder. If Click determines it is running under GAE, it will scan these two folders explicitly for page templates.

> Click GAE does not support automapped pages in production modes
> ---------------------------------------------------------------
>
>                 Key: CLK-639
>                 URL: https://issues.apache.org/jira/browse/CLK-639
>             Project: Click
>          Issue Type: Bug
>          Components: core
>    Affects Versions: 2.1.0
>            Reporter: Bob Schellink
>            Assignee: Bob Schellink
>             Fix For: 2.3.0-M1
>
>
> Google App Engine does not seem to support looking up directories from the servlet context path. This in turn means Click cannot find the templates to build up a cached map of templates to Page classes.
> This problem only affects production and profile modes, not development modes, since development modes access the templates files directly (which GAE supports) if it fails to find it in the cached map.
> The workaround for now is to manually map Pages to templates in the click.xml file:
> <pages package="net.sf.clickclick.examples.jquery.page">
>       <page path="home.htm" classname="HomePage" ></page>
>       <page path="/ajax/form-demo.htm" classname="ajax.FormDemo"></page>
>       ...
>   </pages>

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